274621945 has 16 divisors (see below), whose sum is σ = 360198720. Its totient is φ = 199767744.

The previous prime is 274621937. The next prime is 274621969. The reversal of 274621945 is 549126472.

It is a cyclic number.

It is not a de Polignac number, because 274621945 - 2³ = 274621937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274621898 and 274621907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27175 + ... + 35884.

It is an arithmetic number, because the mean of its divisors is an integer number (22512420).

Almost surely, 2^274621945 is an apocalyptic number.

It is an amenable number.

274621945 is a deficient number, since it is larger than the sum of its proper divisors (85576775).

274621945 is a wasteful number, since it uses less digits than its factorization.

274621945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63144.

The product of its digits is 120960, while the sum is 40.

The square root of 274621945 is about 16571.7212443367. The cubic root of 274621945 is about 649.9975897347.

The spelling of 274621945 in words is "two hundred seventy-four million, six hundred twenty-one thousand, nine hundred forty-five".